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	Encyclopedia :: encyclopedia : Iron (Site not responding. Last check: 2007-11-03)
		Iron is notable for being the final element produced by stellar nucleosynthesis, and thus the heaviest element which does not require a supernova or similarly cataclysmic event for its formation.
		A newer variant of grey iron, referred to as 'ductile iron' is specially treated with trace amounts of magnesium to alter the shape of graphite to sheroids, or nodules, vastly increasing the toughness and strength of the material.
		A class of non-heme iron proteins is responsible for a wide range of functions within several life forms, such as enzymes methane monooxygenase (oxidizes methane to methanol), ribonucleotide reductase (reduces ribose to deoxyribose; DNA biosynthesis), hemerythrins (oxygen transport and fixation in marine invertebrates) and purple acid phosphatase (hydrolysis of phosphate esters).
	www.hallencyclopedia.com /Iron (2715 words)

	Iron - Wikipedia, the free encyclopedia
		Iron is also the second most abundant element by mass, making up 34% of the mass of the Earth; the concentration of iron in the various layers of the Earth ranges from high at the inner core to about 5% in the outer crust.
		Iron is a metal extracted from iron ore, and is almost never found in the free elemental state.
		Iron distribution is heavily regulated in mammals, as a defense against bacterial infection and also because of the potential biological toxicity of iron.
	en.wikipedia.org /wiki/Iron (3411 words)

	Iron
		Iron is also one of the least reactive metals, and therefore, it is sometimes found pure in nature.
		Iron distribution is heavily regulated in mammals, both as a defense against bacterial infection as well as the potential biological toxicity of iron.
		Humans experience iron toxicity above 20 milligrams of iron for every kilogram of weight, and 60 milligrams per kilogram is a lethal dose.[3] Over-consumption of iron, often the result of children eating large quantitities of ferrous sulfate tablets intended for adult consumption, is the most common toxicological cause of death in children under six.
	www.brainyencyclopedia.com /encyclopedia/i/ir/iron.html (3082 words)

	Iron Maiden - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-03)
		Iron Maiden's mascot, Eddie, is a perennial fixture in the band's horror-influenced album cover art, as well as in live shows.
		At Iron Maiden's last Ozzfest performance (August 20th 2005 at the Hyundai Pavilion at Glen Helen in San Bernardino, CA), the band had their sound turned off several times, eggs were thrown towards the stage, and chants of "Ozzy" were shouted through the PA system.
		Iron Maiden is referenced prominently in the lyrics to the 2000 hit "Teenage Dirtbag" by American punk-pop group Wheatus.
	www.knowledgehunter.info /wiki/Iron_Maiden (4282 words)

	Great element iron findings (Site not responding. Last check: 2007-11-03)
		The element iron interacts strongly with liquid water, especially with water in which gases like CO2 and O2 are dissolved." "Therefore: The history of water on Mars is reflected in the iron...
		Back to XL Minerals Main Page Iron (Fe) Function: Iron is essential to the structure and function of haemoglobin, which is utilized in the red blood cells.
		Iron The term iron, as used in the chemical or scientific sense of the word, refers to the chemical element iron or pure iron and is the chief constituent of all commercial iron and steel.
	www.my-element.info /elementiron (808 words)

	Iron - Facts, Information, and Encyclopedia Reference article
		Iron - Facts, Information, and Encyclopedia Reference article
		Image:Axe of iron from Swedish Iron Age, found at Gotland, Sweden.jpg
		The RDA for iron varies considerably based on the age, gender, and source of dietary iron (heme-based iron has higher bioavailability)[2].
	www.startsurfing.com /encyclopedia/i/r/o/Iron.html (2747 words)

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